SUBSTANCE OR CONTAMINATION DETECTION
First Claim
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5-1. The method as claimed in any one of claims 1 to 4 wherein the predetermined information relates to:
- first and second isolated product signals indicative of the light emitted from the isolated (uncontaminated) product across the first and second wavebands respectively in response to optical excitation, andfor each of the one or more isolated substances or contaminants, first and second isolated substance or contaminant signals indicative of the light emitted from the isolated substance or contaminant within the first and second wavebands respectively in response to optical excitation.
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Abstract
A spectroscopic method and system detects the amount of one or more substances or contaminants in or on a product, such as fecal contamination on meat samples.
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Citations
46 Claims
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5-1. The method as claimed in any one of claims 1 to 4 wherein the predetermined information relates to:
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first and second isolated product signals indicative of the light emitted from the isolated (uncontaminated) product across the first and second wavebands respectively in response to optical excitation, and for each of the one or more isolated substances or contaminants, first and second isolated substance or contaminant signals indicative of the light emitted from the isolated substance or contaminant within the first and second wavebands respectively in response to optical excitation.
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22. A method for determining or predicting the amount of one or more substances or contaminants in or on an illuminated product, the method comprising the steps of:
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receiving at least one signal indicative of intensity of light emitted from the product across a waveband, and determining or predicting the amount of each, or at least one, of the one or more substances or contaminants in or on the product by separating a portion of the emitted signal relating to the substance or contaminant from the overall signal emitted from the product based on fluorescent behaviour of the substance or contaminant in isolation from the product and/or based on the fluorescent behaviour of the product or a main or more abundant substance of the product in isolation from the substances or contaminants (hereinafter referred to as isolated product). - View Dependent Claims (23, 24, 25, 26, 27)
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32. A device for determining an amount of one or more substances or contaminations in or on a product, the device comprising:
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a memory component for storing data indicative of predetermined information relating to fluorescence behaviour of a same or similar product or a main or more abundant substance of the product isolated from a substance or contaminant (hereinafter referred to as isolated product) and/or relating to the fluorescence behaviour of each of the one or more substances or contaminants isolated from the product, and a processor configured to; receive a first signal indicative of intensity of light emitted from the product across a first waveband, receive a second signal indicative of intensity of light emitted from the product across a second waveband and containing one or more wavelengths associated with the fluorescent properties of the contaminants or substances to be detected, determine or predict a value indicative of an amount of each, or at least one, of the substance or contaminant, in or on the product from the first and second signals and from the predetermined information. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A system for determining an amount of one or more substances or contaminations in or on a product, the system comprising:
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a light source for illuminating the product with excitation light, and a light detector for determining the amount of one or more substances or contaminations in or on a product, the detector having; a memory component for storing data indicative of predetermined information relating to fluorescence behaviour of a same or similar product or a main or more abundant substance of the product isolated from a substance or contaminant (hereinafter referred to as isolated product) and/or relating to the fluorescence behaviour of each of the one or more substances or contaminants isolated from the product, and a processor configured to; receive a first signal indicative of intensity of light emitted from the product across a first waveband, receive a second signal indicative of intensity of light emitted from the product across a second waveband and containing one or more wavelengths associated with the fluorescent properties of the contaminants or substances to be detected, determine or predict a value indicative of an amount of each, or at least one, of the substance or contaminant, in or on the product from the first and second signals and from the predetermined information. - View Dependent Claims (45, 46)
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Specification